<template>
      <div>
      <div class="title">
        <h4>芙蓉楼送辛渐</h4>
        <span class="btn" @click="isshow = !isshow">
          {{ isshow ? "收起" : "展开" }}
        </span>
      </div>
      <div class="container" v-show="isshow">
        <p>寒雨连江夜入吴，</p>
        <p>平明送客楚山孤。</p>
        <p>洛阳亲友如相问，</p>
        <p>一片冰心在玉壶。</p>
      </div>
    </div>
</template>

<script>
export default {
  data() {
    return {
      isshow: true,
    };
  },
}
</script>

<style scoped>
 .title {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid #ccc;
      padding: 0 1em;
    }
    .title h4 {
      line-height: 2;
      margin: 0;
    }
    .container {
      border: 1px solid #ccc;
      padding: 0 1em;
    }
    .btn {
      /* 鼠标改成手的形状 */
      cursor: pointer;
    }
</style>